local_audio_visualizer

An HTML5 experiment.

Drag an audio file to the browser window. It will be played directly from your hard disk, and you'll have a neat spectrum visualization.

Here is the demo

Here is the docco-generated documentation, which makes for a decent tutorial

HTML5 features showcased

• Web Audio Api (for playback and analysis)
• File access (for local playback)
• Native drag and drop (for, you know, drag and drop)
• Canvas and css transforms (for the things you see)